流程图 结构图

Automation technology

Computer technology

Communication technology

Relay Control

New industrial control device

Microprocessors

Core

automation

Intelligent

Promoted the field of machinery

Accuracy

Flexibility

control of systems

First programmable controller

Multiple disadvantages

Traditional relay control system

Control of various types of machinery or production processes

Designed for application in industrial environments

Digital computing operations

through digital and analog inputs and outputs

Employing programmable memory

Electronic systems

Programmable Controllers

Programmable Logic Controller